Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a Classe depois de 1986?
 ###Tabelas: CREATE TABLE batting_averages (batting_averages_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Matches INT, Inns INT, N/O INT, Runs INT, High Score INT, Average VARCHAR, 100 INT, 50 INT, Catches INT, Stump INT) CREATE TABLE political_assistants (political_assistants_id AUTO_INCREMENT PRIMARY KEY, Romanised name VARCHAR, Chinese name VARCHAR, age at appointment INT, Foreign nationality VARCHAR, Portfolio attachment VARCHAR, Govt salary VARCHAR) CREATE TABLE grand_prix_career_statistics (grand_prix_career_statistics_id AUTO_INCREMENT PRIMARY KEY, Year INT, Class VARCHAR, Team VARCHAR, Machine VARCHAR, Points INT, Wins INT) CREATE TABLE list_of_deputy_prime_ministers_of_spain (list_of_deputy_prime_ministers_of_spain_id AUTO_INCREMENT PRIMARY KEY, Deputy Prime Minister VARCHAR, Took office INT, Left office VARCHAR, Prime Minister VARCHAR, Term VARCHAR, Party VARCHAR) CREATE TABLE riff_awards (riff_awards_id AUTO_INCREMENT PRIMARY KEY, Year INT, Dates VARCHAR, Discovery of the Year (Golden Puffin) VARCHAR, Lifetime Achievement VARCHAR, Creative Excellency VARCHAR, Audience Award VARCHAR, FIPRESCI Award VARCHAR, Church of Iceland Award VARCHAR)  
SELECT Class FROM grand_prix_career_statistics WHERE Year > 1986